Abstract
The coding sequence of a major xylem sap protein of tomato was identified with the aid of mass spectrometry. The protein, XSP10, represents a novel family of extracellular plant proteins with structural similarity to plant lipid transfer proteins. The XSP10 gene is constitutively expressed in roots and lower stems. The decline of XSP10 protein levels in tomato infected with a fungal vascular pathogen may reflect breakdown or modification by the pathogen.
MeSH terms
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Amino Acid Sequence
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Antigens, Plant
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Carrier Proteins / chemistry
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Cysteine / chemistry
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Fusarium / pathogenicity
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Mass Spectrometry
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Molecular Sequence Data
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Mycoses / metabolism
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Plant Diseases
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Plant Proteins / chemistry*
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Plant Proteins / genetics
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Plant Proteins / metabolism*
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Plant Stems / chemistry
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Protein Structure, Tertiary
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Solanum lycopersicum / chemistry*
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Solanum lycopersicum / metabolism
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Solanum lycopersicum / microbiology
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Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
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Structural Homology, Protein
Substances
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Antigens, Plant
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Carrier Proteins
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Plant Proteins
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lipid transfer proteins, plant
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Cysteine